Finding the Fourth Proportional to 10,617,810.75, 15,926,774.45 and 2,639,634.75
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Solution
The fourth proportional to 10,617,810.75, 15,926,774.45 and 2,639,634.75 is: 3,959,466.62
Step by Step Solution
- Step 1: Write the proportion equation
10,617,810.75 : 15,926,774.45 = 2,639,634.75 : x - Step 2: Convert to fraction form
10,617,810.75/15,926,774.45 = 2,639,634.75/x - Step 3: Cross multiply
10,617,810.75x = 15,926,774.45 × 2,639,634.75 - Step 4: Simplify right side
10,617,810.75x = 42,040,867,280,433.96 - Step 5: Solve for x
x = 42,040,867,280,433.96/10,617,810.75 - Step 6: Final answer
x = 3,959,466.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.